| Zelalem Aweke | 13dc8f1 | 2021-07-09 14:20:03 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2021, Arm Limited and Contributors. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #ifndef RMMD_INITIAL_CONTEXT_H |
| 8 | #define RMMD_INITIAL_CONTEXT_H |
| 9 | |
| 10 | #include <arch.h> |
| 11 | |
| 12 | /* |
| 13 | * SPSR_EL2 |
| 14 | * M=0x9 (0b1001 EL2h) |
| 15 | * M[4]=0 |
| 16 | * DAIF=0xF Exceptions masked on entry. |
| 17 | * BTYPE=0 BTI not yet supported. |
| 18 | * SSBS=0 Not yet supported. |
| 19 | * IL=0 Not an illegal exception return. |
| 20 | * SS=0 Not single stepping. |
| 21 | * PAN=1 RMM shouldn't access realm memory. |
| 22 | * UAO=0 |
| 23 | * DIT=0 |
| 24 | * TCO=0 |
| 25 | * NZCV=0 |
| 26 | */ |
| 27 | #define REALM_SPSR_EL2 ( \ |
| 28 | SPSR_M_EL2H | \ |
| 29 | (0xF << SPSR_DAIF_SHIFT) | \ |
| 30 | SPSR_PAN_BIT \ |
| 31 | ) |
| 32 | |
| 33 | #endif /* RMMD_INITIAL_CONTEXT_H */ |